CVE-2019-1010190 : What You Need to Know

mgetty version 1.2.1 and earlier are vulnerable to an out-of-bounds read issue, potentially leading to a Denial-of-Service (DoS) scenario. The vulnerability affects the putwhitespan() component in g3/pbm2g3.c.

Understanding CVE-2019-1010190

This CVE details a specific vulnerability in mgetty versions prior to 1.2.1.

What is CVE-2019-1010190?

CVE-2019-1010190 is an out-of-bounds read vulnerability in mgetty versions before 1.2.1, allowing for a DoS situation if exploited.

The Impact of CVE-2019-1010190

The vulnerability can result in a program crash due to improper memory mapping, triggered by a specially crafted file locally accessed by an attacker.

Technical Details of CVE-2019-1010190

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The vulnerability lies in an out-of-bounds read issue within the putwhitespan() component in g3/pbm2g3.c of mgetty.

Affected Systems and Versions

Product: mgetty
Vendor: mgetty
Versions: 1.2.0 [fixed: 1.2.1]

Exploitation Mechanism

To exploit this vulnerability, an attacker must have local access to a specifically crafted file.

Mitigation and Prevention

Protecting systems from CVE-2019-1010190 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update mgetty to version 1.2.1 or later to mitigate the vulnerability.
Restrict access to vulnerable components to trusted users only.

Long-Term Security Practices

Regularly monitor and patch software for known vulnerabilities.
Implement proper file validation mechanisms to prevent malicious file execution.

Patching and Updates

Ensure timely installation of security patches and updates to keep systems protected.